The pie diagram represents the export of different types of fabrics (in degree measure) from India during 2015.
If the income from one ton of fabric A is three times that from the fabric C, then the ratio between the income from A to C is:
1
1 ∶ 3
2
3 ∶ 1
3
12 ∶ 1
4
6 ∶ 1